Garage door control



Oct. 9, 1934. F. BURGETT 1,975,766

GARAGE DOOR CONTROL Filed March 7, 1934 Inventor, Marion F. Burgett I )WJjZZFl Attorneysof the bar 12 is pivotally attached to the outer Patented Oct. 9, 1934 'raxrs rrr OFFICE 1,975,766 I I LGARAIGEIDOOR CONTROL Y Marion F. Burgett, Indianapolis, Ind; Application March 7, 1934, Serial No.71444'1 5 Claims. (01. 268-62) The'object ci-this invention is to provide a mechanism connecting twoswinging doors such as the large doors of a garage, that by manually swinging one ofthe'doors'the other door of the pair will-be correspondingly opened or closed, and at difierent rates of travel whereby one will close sumciently in advance of the other that the first doorto close will not interfere with a'joining strip carried by the other "door; Another-object is to provide a simple and inexpensive device that'will so lock'and hold the do'orsin their operipositions that'they'willbe secure against accidental closing as by.-wind pressure or movement by other causes until unlocked.

I aceoinplish' the above and'other objects which will hereinafter appear, by the mechanism illustrated in the accompanying drawing, in which:

'Fig. -l-is a detail in horizontal section of a garage showing the doors equipped witlrmy invention, "in open position in top .planview in full lines and indash lines in near closed position.

Fig3=2-isa detail in' elevation of the doors and operative mechanism, such as is shown in full lines in Fig. 1.

Fig. 3 is a detail on a larger scale of the left hand end of Fig. 2, showing parts in vertical section, and

Fig. 4 is a detail on a larger scale of the end of the locking lever showing its means of assembly with the spring and pull chain.

Like characters of reference indicate like parts in the several views of the drawing.

5, 5 represent the wall of a garage at the door opening and 6 and 7 comprisea pair of doors which are hinged to the wall at the opening to swing about vertical hinge lines, in the usual manner.

Bolted to the inner side of thedoor 6 is a bracket 8, here shown as a semicircular plate, but the shape may be varied, within the functional requirements of the cooperative mechanism of the device.

Pushing upon the bracket 8 is an end of a bar 9, which bar is swingingly attached to the bracket y by a bolt 10, here shown as double headed, but

one end may be threaded and receive a nut in the usual manner. Bolted tothe inner side of the door '7 is a bracket 11 to which is rigidly attached a bar 12, preferably extending to the rear at an acute angle from the door. The outer end end of the bar 9. By reason of this bar, connection between the doors when one of the doors is manually swung on its hinges the other door will 55 be correspondingly swung. The length of the bar 12 is preferably less than one third ofthe length of the bar 9, in order that the door '7 will move faster than the door 6, when one of the doors, preferably door 6 forthe convenience oi the operator, is manually swungon its hinges.

Secured to the outside of the door 6 at its outer vertical edge is a strip 13 which projects beyond the door 6 for the-purpose of overlapping the door 7 and making a tight joint, and it is largely to cause the door 7 to close in advance of the'door 6 to avoid interference with the strip 13 that the bars 9 and 12 are varied in length, as described.

'I have here shown the bars 9 and 12 as made out of channel bariron or steel for lightness in weight and cost and maximum strength, but do not desire to be limited to bars of that construction. l

Secured to the under sideof the bar 9 near the bracket plate 10, here shown as by welding, is a metal strap 14, having a free end whichprojects under the bracket plate to retain the bar in contact with the plate, and above the bar 9 is a bent latch bar 15, pivoted to the bar 9at the angle of the latch bar. A short arm of the latch bar is normally raised by a spring 16 to contact the opposite long arm against the bar 9. The free end of this long arm extends within the area of the bracket plate 10 and terminates with a pin 17. The bar 9 and underlying strap 14 are formed with registering holes for the passage therethrough of the latch pin 17 and the bracket-plate 10 is formed with a hole 18 through which the pin 1'7, which is properly pointed for ready insertion, passes when the bar 9 is swung over the location of hole 18. The position of the hole 18 on its plate is such as to cooperate with the latch to lock the doors in the open position of the doors, as shown by full lines in Fig. 1. By the action of spring 16 the locking operation is automatic, and to unlock the device, a link 19 is pivoted to the short arm of the latch bar 15 and extending tion with the foregoing as to negative the necessity for further description.

I do not desire to be limited by the exact construction shown nor any more than is required by the appended claims.

I claim:

1. In a door control, the combination witha pair of doors hinged to swing together in closing and apart in opening, one of said doors having a joint strip to overlap the other door when the doors are closed and a bracket plate attached to the door with the joint strip, of a bar supported upon and pivotally secured at one end to the bracket plate, and a second bar pivoted to the other end of the first bar and rigidly attached to the other door, the first bar being longer'than the secondbar to cause the doorsto close without interference between the joint strip and the other door, said first bar carrying a latch to lock the bar to the plate. 7 I: i

2. In a door control, the combinationwith a pair of doors hinged to swing together in closing and apart in opening, one of said doors having a joint strip to overlap the other door when the doors are closed and a bracket 'plate'attached to the door with the joint strip, of a bar pivotally.

secured at one end to the bracket plate, and a second bar pivoted to the other end of the first bar and rigidly attached to the other door, the first bar being longer than the second bar to cause the doors to close without interference be-' tween the joint strip and the other door, and a latch means carried by the first bar and pressed by aspring into engagement with a catch means in the plate for making the attachment of the first bar with the first door rigid.

3. In a door control, the combination with a pair of doors hinged to swing together in closing and apart in opening, one of said doors having a joint strip to overlap the other door when the doors are closed and a bracket plate attached to the door with the joint strip, of a bar pivotally secured at one end to the bracket plate, and a second bar pivoted to the other end of the first bar and rigidly attached to the other door, the firstbar being longer than the second bar to cause the doors to close'without interference between the joint strip andthe other door, automatic latch means carried by the first bar and pressed by a spring into engagement with acatch means in the plate for making the attachment of the first bar to the first door rigid and manually operated means for releasing the latch attachment.

4. In a door control, the combination with a pair of doors hinged to swing together in closing and apart in opening, of a bracket plate rigidly attached to one of the doors, a bar pivotally secured at one end to the bracket-plate, a second bar pivoted to th'eother end ofthe first bar and rigidly attached to the other door, a bent latch ,lever pivoted to the first bar, a spring pressing an end of the latch bar away from the bar to which it is pivoted, the other end of the latch bar terminating within the area of the plate and carrying a latch pin, said bar to which the latch bar is pivoted and said plate having registering holes through which the pin passes when the pin reaches thelocationof the hole in the plate, and ;manually operated means to withdraw the pin.

5. In a door control, the combination with a pair'of doors hinged to swing together in closing and apart in opening, one of said doors having a joint-strip to overlap the other door when the doors are closed, of" a bracket-plate rigidl-yattached to the door having the joint-strip, a bar pivotally: securedat one end to the bracket-plate, said .bar'having a tongue extending under the bracket-plate, a second bar pivoted tothe other end of the first bar and extending from the rear thereto at an acute'angle and rigidly attached to the other door, a bent'latch-barpivoted to the first bar, a spring pressing an end of the latchbar away from the bar to which it is pivoted, the other. end of the latch-bar terminating within the area of the bracket-plate and carrying a latch pin, said bar tov which the latch-bar is pivoted, its underlying strap, and saidplate, having registering holes through which the pin passes when the pin reaches the location of the hole in the plate, and manually operated means for withdrawing the pin.

MARION F. :BURGETT. 

